bstring-errors

This is a tool to detect errors in bech32 and cashaddr addresses (up to 2 errors). This will only return error positions and wont attempt to fix the address, because it might lead to incorrect fixes in some cases.

Installation

You can install using npm.

For usage as a library npm i bstring-errors or
For binaries npm i -g bstring-errors

bin usage

This repo comes with two binaries: bech32-errors and bcashaddr-errors.

bech32-errors usage

bech32-errors:
  Usage:
    bech32-errors addresses...
    bech32-errors address0 address1...

  Options:
    -h  Show this message

bcashaddr-errors usage

cashaddr-errors:
  Usage:
    cashaddr-errors addresses...
    cashaddr-errors address0 address1...

  Options:
    -h  Show this message
    --prefix    Default prefix[bitcoincash]

lib usage

const {bech32, cashaddr} = require('bstring-errors');

// Bech32 
// correct
const bech1 = 'bc1qw508d6qejxtdg4y5r3zarvary0c5xw7kv8f3t4';
// with error
const bech2 = 'bc1qw500d6qejxtdg4y5r3zarvary0c5xw7kv8f3t4';
// can't detect
const bech3 = 'bc13333336qejxtdg4y5r3zarvary0c5xw7kv8f3t4';

// returns empty array
console.log(bech32.locateErrors(bech1));

// [ 7 ]
console.log(bech32.locateErrors(bech2));

// Throws "Invalid Address, Could not locate errors."
console.log(bech32.locateErrors(bech3));

// CashAddr

const prefix = 'bitcoincash';
// correct
const cashaddr1 = 'bitcoincash:qpzry9x8gf2tvdw0s3jn54khce6mua7lcw20ayyn';
// with error
const cashaddr2 = 'bitcoincash:qpzry988gf2tvdw0s3jn54khce6mua7lcw20ayyn';
// no recovery
const cashaddr3 = 'bitcoincash:999999x8gf2tvdw0s3jn54khce6mua7lcw20ayyn';

// returns empty array
console.log(cashaddr.locateErrors(cashaddr1, prefix));

// [ 18 ]
console.log(cashaddr.locateErrors(cashaddr2, prefix));

// Throws "Invalid Address, Could not locate errors."
console.log(cashaddr.locateErrors(cashaddr3, prefix));

bin example

$ bech32-errors bc1qw508d6qejxtdg4y5r3zarvary0c5xw7kv8f3t4
bc1qw508d6qejxtdg4y5r3zarvary0c5xw7kv8f3t4

$ bech32-errors bc1qw500d6qejxtdg4y5r3zarvary0c5xw7kv8f3t4 
bc1qw500d6qejxtdg4y5r3zarvary0c5xw7kv8f3t4
       ^